19752561

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2579}}^1$

素因数の和:2645

約数の個数: 24

約数和(自身を含む): 30588480

約数和(自身を除く): 10835919

約数列:

[1, 3, 9, 23, 37, 69, 111, 207, 333, 851, 2553, 2579, 7659, 7737, 23211, 59317, 95423, 177951, 286269, 533853, 858807, 2194729, 6584187, 19752561]

約数ペア:

[(1, 19752561), (3, 6584187), (9, 2194729), (23, 858807), (37, 533853), (69, 286269), (111, 177951), (207, 95423), (333, 59317), (851, 23211), (2553, 7737), (2579, 7659)]